Contact-oiler.



P. G. MAGGREGOR.

CONTACT OILEH. APPLICATION HLED 11110.13, 1912. 1111113111313 JULY 1a, 1914.

1,1309759. latented Mar. 9, 1915.

.PETER GRAHAM MAGGREGOR, OF NEW YORK, N. Y.,

SSIGNOR TO PETER G. MACGREGOR,

EDWARD M. DAVIDSON, AND PETER L. WILBUR.

CfONTAGT-OILER.

Application led Eecember 13, 1912, Serial No. 736,644. Renewed July kTo all whom t may concern.'

Be it known that l, PETER G. MACGREGOR, a citizen of the United States, and resident of the city, county, and State of New York, have invented certain new and useful lmprovements in Contact-0ilers, of which the following is a specification.

This invention relates to a device for oiling the contact members of an electric circuit closing device.

lThe object of the invention is to provide a device or an attachment especially adapted for use with street car controllers for reducing the wear and friction between the contact members.

The object of the invention is to provide a simple and efficient device for the purpose specified which may be readily attached to any circuit closing device or controller of standard construction.

ln the drawings like parts of the several views have been given the same reference numeral.

Figure l is a sectional plan View of a portion of a controller showing the oiling device attached thereto. Fig. 2 is a side elevation of a portion of F ig. 1. Fig. 3 is a detailed view of a portion of Fig. 1 showing the oiling device in operation.

rlhe base of the controller is shown at 1 and the cover at 2. The contacts 3, 4, and 5 are rotatively mounted upon a shaft 6 and operated in the usual manner by means of a hand crank or lever, not shown. rlhe contact fingers 7 and 8 are carried by resilient members such as 9 upon a suitable support 10 attached to the base 1. lThese parts maybe of any standard construction for a device of this nature and no novelty is claimed for these features.

lThe oiling device consists of a block of absorbent .material, such as felt, shown at 11. The block 11 is partially inclosed on two sides by a strip of insulating material 12 and is mounted at one end of the resilient member 13 which, in turn, is attached at its opposite end to the contact finger 7. rl`he resilient member 13 is curved or formed so that when the same is attached to the contact finger 7, the inner surface of the block 11 projects beyond the surface of the con- Speocation of 'Letters Patent.

Patented Mar., 9, i915.

1e, 191e. serial No. 851,815.

tact 3. The forward edge of the block 11 is beveled or formed at an angle so that when the same is engaged by the contact 3, the absorbent block 11 will at first be slightly compressed, as shown in Fig. 3, thus forcing a portion of the oil 'or lubricating material with which it is saturated to the outer surface thereof and then as the block is raised by the further movement of the contact 3, the oil is distributed over the face of the contact. lt will be understood that a number of these oiling devices are provided, one for each contact. What l claim is: l. ln a device of the classl described, the combination with a series of movable contacts, of a series of independent non-rotatable absorbent members each positioned to engage one of said contacts and to be compressed thereby, and a series of independent resilient members upon each of which one of said absorbent members is mounted.

2. In a device of the class described, the combination with a series of movable contacts and contact ngers positioned to engage therewith, of aseries of independent non-rotatable absorbent members each positioned to engage one of said contacts and to be compressed thereby, and a series of independent resilient members each operating in conjunction with one of said contact fingers and upon each of which one of said ab" Y sorbent members is mounted.

3. ln a device of the class described, the combination with a movable contact, of an absorbentmember having its inner surface projecting beyond the path of said contact member and having its forward edge beveled so that as the same is engaged by said contact it is rst compressed and then raised by the further movement of the contact and caused to pass over the face thereof, and a resilient member upon which said absorbent member is mounted.

Signed at New York city, in the county and State of New York, this 12 day of November, 1912.

PETER GRAHAM MAGGREGR.

Witnesses:

Lnwrs J. DooLrTTLE, ANDREW L. REA. 

